The International Criminal Police Organization (Interpol) has issued red notices to locate and provisionally arrest 20 nationals of Saudi Arabia, who are believed to be linked to the killing of Saudi journalist Jamal Khashoggi, the NTV broadcaster reported on Thursday.

The UN has repeatedly called on Saudi Arabia to cooperate with an UN-led investigation into Khashoggi's murder, but the kingdom has refused, calling it an internal matter.

Some Western governments have accused Crown Prince Mohammed bin Salman of being implicated in the murder.

"We would like to assume that Mr. Al Aiban's remarks reflected his personal views rather than the official position of the Kingdom of Saudi Arabia - our friend and kin", the communications director said.

The head of a Saudi delegation speaking before the UN Human Rights Council in Geneva insisted that his country was taking all the "measures required for us to resolve this heinous crime".

The kingdom, he said, will not accept calls to "internationalize" the legal proceedings, which would be perceived as foreign interference with domestic affairs.

Citing the Turkish Justice Ministry, Daily Sabah said the red notice was originally issued on 1 March as part of an investigation by the Istanbul Chief Public Prosecutor's Office into Khashoggi's murder.

Ankara has repeatedly pressed Riyadh to reveal more details of the killing. He was killed inside Saudi Arabia's consulate in Istanbul on October 2.